a = ord('A') #65
print(a)
c = chr(66)
print(c)

b = ord('中')
print(b)

s = chr(20013)
print(s)
s = chr(20016)
print(s)

by = 'ABC'.encode('ascii')
print(by) # b'ABC'

ba = b'abc'

sa = ba.decode('ascii')
print(sa)
